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Level malfunction<br />
Duo Pumpe 1/2<br />
8. Problems and Solutions<br />
• Level malfunction<br />
A float switches has activated without one of the float switches below activating first<br />
(incorrect order of float switch activation)<br />
--> Check all float switch cables to make sure they are not tangled or wrapped up.<br />
Make sure all float switches can move freely<br />
--> Check float switches for proper operation<br />
Single Pump Aqualift F<br />
• “Pump Off“ float switch which does not activate.<br />
In the case that the ”Pump Off” float switch does not shut off,<br />
the alarm warning will be activated when the wastewater<br />
level rises above the ”Pump On“ level. The pump will turn off<br />
when the wastewater level falls below the ”Pump On“ level.<br />
• “Pump On” float switch which does not activate.<br />
The alarm will activate and the pump will start when the wastewater<br />
rises above the ”Alarm On” level. Pump will turn off<br />
when the level falls below the ”Pump On” level.<br />
• “Pump On” float switch which is stuck in the “On” position.<br />
A warning will be displayed after the wastewater falls below<br />
the “Pump Off” level. The pump remains in activation.<br />
• “Alarm” float switch is stuck in the “On” position.<br />
A warning will be displayed after the wastewater level has fallen<br />
below the “Pump On” level – the warning will be a continuous<br />
(non-stop) alarm warning. The alarm can be acknowledged<br />
by pressing the Alarm button. The warning relay will<br />
remain activated until the problem has been cleared / fixed.<br />
The pump continues to run. A level malfunction warning<br />
occurs .<br />
Double Pump Aqualift F<br />
• “Pump Off” float switch which does not activate.<br />
Malfunction warning occurs when the Pump 1 On level exceeded.<br />
Both pumps activate only when the wastewater level<br />
exceeds the Pump 2 On level and turn off when the level falls<br />
below the Pump 1 On level<br />
• “Pump On” float switch which does not activate.<br />
Malfunction warning occurs after wastewater level falls<br />
below the Pump Off level. The pumps remain in operation. A<br />
level malfunction warning occurs<br />
• Constantly closed “Pump 1 On” level switch.<br />
An alarm will activate after the wastewater level has fallen<br />
below the “Pumps Off” level. Both pumps will continue to run.<br />
A level malfunction warning occurs.<br />
• Constantly closed “Pump 2 On” level switch.<br />
An alarm will activate after the wastewater level has fallen<br />
below the “Pumps Off” level. Both pumps will continue to run.<br />
A level malfunction warning occurs.<br />
• Constantly closed ”Alarm” level switch.<br />
Malfunction warning occurs after the wastewater level falls<br />
below the ‘Pump On’ level. A continuous alarm sounds. The<br />
alarm can be acknowledged by pressing the Alarm button.<br />
The warning relay will remain activated until the problem has<br />
been cleared / fixed. The pump continues to run. A level malfunction<br />
warning occurs<br />
8.3 Disturbances / Internal controls<br />
The control unit continuously monitors motor temperature,<br />
the motor protection switch and the rotation / phase of the<br />
motors. In the case of a disturbance the pump will either be<br />
shut off or prevented from starting. This will result in a corresponding<br />
alarm and the lighting of an LED.<br />
8.3.1 Phase / Rotation Monitoring<br />
In the case that L2 and / or L3 fail, the ”Phase/Drehfeld” LED<br />
will continuously light and the ”Störung” relay will activate.<br />
Since the control of L1 is still active, the failure of L1 will not<br />
be displayed. In the case that L1 fails the installed warning<br />
device will sound as long a battery has been installed in the<br />
control unit. In the case that the rotation is incorrect, the<br />
”Phase / Drehfeld” LED will blink.<br />
In the operational mode ”Hand” it is possible to run the pump<br />
with the incorrect rotation – in all other operational modes the<br />
control unit will block the functioning of the motor in the case<br />
that the rotation is incorrect.<br />
• “Pump 2 On” float switch which does not activate.<br />
An alarm will activate after the wastewater level has fallen<br />
below above the “Pump Off” level. Both pumps will continue<br />
to run. A level malfunction warning occurs<br />
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